How long it takes for chronic nephritis to develop into uremia varies from person to person, depending on the severity of the patient’s condition as well as the standard of treatment, and cannot be generalized. It may be years or decades. Chronic nephritis is a chronic developmental disease, difficult to cure, so there is a possibility of developing into renal insufficiency, renal failure or even uremia. If the disease can be controlled by active medication in the early stage, such as using drugs that control blood pressure, reduce urinary protein, diuretic and reduce swelling, and protect renal function, such as valsartan, furosemide, and beryllium capsules, etc., the disease can usually be partially relieved, and hormones (prednisone) as well as immunosuppressant (cyclosporine) can be used to try to slow down the progression of the disease if necessary. If the patient’s pathology is mild, such as mild thylakoid proliferative glomerulonephritis, microscopic nephritis, etc., the amount of urinary protein is low, there is no comorbidity, such as high blood pressure, and with active and effective treatment, it may take decades to develop into uremia. If the patient’s pathology is more serious, such as focal segmental glomerulosclerosis, combined with a large amount of proteinuria, and do not take effective measures to slow down the progression of renal function, may be several years to develop uremia. The above medication should be taken under the guidance of a physician, and should not be used arbitrarily, so as not to aggravate the condition. Chronic nephritis patients need to consult a regular hospital in a timely manner, under the guidance of a physician for regular review, comprehensive treatment, to avoid delays in the condition.